CN105134077B - A kind of minor diameter static state backup vertical drilling system under micromachine driving - Google Patents
A kind of minor diameter static state backup vertical drilling system under micromachine driving Download PDFInfo
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- CN105134077B CN105134077B CN201510600629.4A CN201510600629A CN105134077B CN 105134077 B CN105134077 B CN 105134077B CN 201510600629 A CN201510600629 A CN 201510600629A CN 105134077 B CN105134077 B CN 105134077B
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Abstract
A kind of minor diameter static state backup vertical drilling system under being driven the invention discloses micromachine, including guide sleeve, guide sleeve bottom is provided with can be along the guide frame of guide sleeve radial expansion, also include the drive mechanism of driving guide frame, the drive mechanism includes servomotor, the output shaft of servomotor passes through decelerator drive connection bolt, sliding block is threaded with bolt, position limiting structure is provided with inside and outside sliding block, with axial movement of the movable slider along bolt when enabling the bolt rotate, bolt to a direction rotate when, sliding block can be directed to structure release, bolt to another direction rotate when, guide frame can be made to be shunk in the presence of resetting-mechanism.Drilling operation of the well system especially suitable for minor diameter well head.
Description
Technical field
The present invention relates to drilling technology field, the minor diameter static state backup under particularly a kind of micromachine driving is vertically bored
Well system.
Background technology
At present, the important means that drilling project is explored as resource and environment, its research field are just prolonged from traditional earth's surface
Reach polar region, ocean, and Earth, marine bottom.Deep drilling will be the important means of Earth detection, and obtain
Earth unique method in kind, but during deep drilling, how to keep well is vertically a great problem, hole deviation
The problem of will directly restrict rate of penetration and drilling quality, the success or failure of even whole drilling project.As the well of Pinaceae two well to be made
As deep as to 6400 meters, with being continuously increased for well depth, hole deviation problem will protrude further, and harm is further serious.
Many drilling projects such as former Soviet Union Kola ultradeep wells (design hole termination depth 15000m, actual hole termination depth 12262m)
It is forced in advance eventually because hole deviation is uncontrollable with German KTB main apertures (design hole termination depth 10000m, actual hole termination depth 9101m)
Hole.In order to solve this problem, substantial amounts of theory analysis and field practice have been carried out both at home and abroad, are proposed rigidity in succession and are met the eye on every side brill
The anti-oblique method such as tool, pendulum way-type drilling unit, off-axis drilling tool, but these methods are all to sacrifice the pressure of the drill, reduce rate of penetration to change
The passive anti-oblique mode of anti-oblique effect, effect and unobvious, or even some stratum are taken not to reach the effect of anti-oblique well straightening completely.Especially
It is the passive anti-oblique method limited success in the drilling operation of deep hole and superdeep holes, engineering time institute's accounting for well straightening
Escheat is very big.
The appearance of automatic vertical drilling and rotary steerable drilling system, major technological breakthrough is brought for anti-oblique well straightening,
Be a kind of mechanical electronic hydraulic that collects in the downhole intelligent closed loop NDS of integration, underground actively anti-oblique well straightening can be achieved, be not required to
Want human intervention and from the predetermined well track of motion tracking, can successfully solve high-dip structure, high inclination-angle bad ground it is anti-oblique
Well straightening problem, while hole quality is ensured, the pressure of the drill is discharged, improves rate of penetration.German KTB engineerings main aperture reaches whole hole depth
The most important prerequisite of degree is successfully to implement vertical drilling strategy, the automatic vertical drilling system (VDS) of development into
Work(is applied to 7500m hole depth scope so that KTB turned at that time most vertical drilling in the world, and successfully limited grinding
Load and moment of torsion, implement small―gap suture drilling for the later stage and sleeve pipe strategy provides necessary prerequisite.Automatic vertical drilling system
The development of system has been further driven to the progress of rotary steering technology, external to proceed by actively anti-oblique technology from the 1980s
Research so far, has had more than 10 companies to form respective rotary steering system, and has carried out field test and application, its nothing
One exception is all with vertical drilling function.At present, with commercial applications ability main or Baker Hughes,
Schlumberger and the companies of Halliburton tri-.
Current static pushing type automatic vertical drilling system is mainly arranged on outside including one and led relative to what is do not rotated
To set, guide sleeve bottom is used for external drill bit, and gravitational accelerometer is provided with guide sleeve, for sensing hole deviation, under guide sleeve
Portion is provided with the guide pad being hydraulically operated, and when sensing hole deviation, the microprocessor into guide sleeve sends signal, controls hydraulic pressure
System, so that protrusion withstands on well inwall to guide pad laterally, to play a part of correcting hole deviation.But it is oriented to for driving
The fluid power system of block needs the mechanisms such as independent hydraulic pump, complicated so that guide sleeve it is oversized, can not apply
In the drilling of minor diameter well head.
The content of the invention
A kind of minor diameter static state backup vertical drilling system under being driven it is an object of the invention to provide micromachine, especially
Suitable for the drilling operation of minor diameter well head.
To achieve these goals, the minor diameter static state backup under a kind of micromachine driving provided by the invention is vertically bored
Well system, including guide sleeve, guide sleeve bottom, which is provided with, to be oriented to knot along the guide frame of guide sleeve radial expansion, in addition to driving
The drive mechanism of structure, the drive mechanism include servomotor, and the output shaft of servomotor passes through decelerator drive connection spiral shell
Bolt, sliding block is threaded with bolt, position limiting structure is provided with inside and outside sliding block, with movable slider edge when enabling the bolt rotate
The axial movement of bolt, bolt to a direction rotate when, sliding block can be directed to structure release, bolt to another direction turn
When dynamic, guide frame can be made to be shunk in the presence of resetting-mechanism.
Preferably, the position limiting structure is：The inner side of guide frame is mutually butted on the outside of sliding block, is set in the guide sleeve
Confined planes are mutually butted on the inner side of sliding block.
It is highly preferred that the guide frame is guide pad, the inner surface of guide pad is provided with inclined-plane, makes guide pad and bolt
Between formed by wide to narrow space.
Further, the inclined-plane includes the first inclined-plane and the second inclined-plane being arranged on below the first inclined-plane, and first is oblique
The space formed between face and bolt becomes narrow gradually from top to bottom, the space formed between the second inclined-plane and bolt from top to bottom by
Gradual change is wide；The sliding block includes the first sliding block, is arranged on the inner side on the first inclined-plane；And second sliding block, it is arranged on the second inclined-plane
Inner side；The internal thread of first sliding block and the second sliding block is in opposite direction.
Further, the quantity on the first inclined-plane and the second inclined-plane is respectively two, the inclined degree phase on two the first inclined-planes
With and two the second inclined-planes inclined degree it is also identical；First sliding block both ends are raised, medial recess, make the convex of the first sliding block both ends
Rise and respectively offseted with first inclined-plane；Second sliding block both ends are raised, medial recess, make the second sliding block both ends it is raised respectively with one
Second inclined-plane offsets.
Preferably, connected between the bolt and decelerator by six square bars.
Preferably, the resetting-mechanism is to be arranged on the back-moving spring on the inside of guide frame.
Preferably, the control system of well system includes gyroscope, accelerometer and fluxgate, gyroscope, accelerometer
Analog-digital converter, the output end connection controller of analog-digital converter, controller control connection institute are connected with the output end of fluxgate
State servomotor.
It is highly preferred that the gyroscope is MEMS gyroscope, the accelerometer is mems accelerometer.
Preferably, in addition to removably the pressing plate being connected on guide sleeve, for pushing down the guide frame.
Minor diameter static state backup vertical drilling system under a kind of micromachine driving provided by the invention, passes through servo electricity
Machine driving bolt rotates, and then promotes guide frame with movable slider, avoids, using complicated hydraulic mechanism, saving space,
Various sealing problems in hydraulic system need not be considered, simplify the structure of drive mechanism, operation is more stable.
Brief description of the drawings
Fig. 1 is cuing open for the minor diameter static state backup vertical drilling system under a kind of micromachine driving provided by the present invention
View.
Fig. 2 is the overlooking the structure diagram of targeting moiety；
Fig. 3 is the control system architecture schematic diagram of well system.
In figure：
1. the sliding block 8. of 6. first sliding block of guide sleeve 2. guide pad, 3. servomotor, 4. decelerator, 5. bolt 7. second
The inclined-plane of 9. pressing plate of confined planes, 10. 6 square bar, 21. first inclined-plane 22. second
Embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
In order to facilitate description, the relative position that the heretofore described word such as upper and lower, inside and outside is used to describe each part is closed
System, because well system is that drill bit is directed downwardly in the course of the work, therefore herein " on " direction away from drill bit is referred to,
" under " refer to close to the direction of drill bit." interior " is referred to close to the direction of well system central shaft, the remote drilling well that " outer " refers to
The direction of system centre axle.
It refer to Fig. 1, the minor diameter static state backup vertical drilling system under micromachine driving, including one with drilling rod
The external orientation set 1 of rotation, the interior middle part of guide sleeve 1 are drilling rod, and drilling rod lower end is used to connect drill bit.Bottom in guide sleeve 1 is set
There is guide pad 2, guide pad 2 can stretch out, for supporting the borehole wall under the driving of drive mechanism out of guide sleeve 1.Work as driving machine
The driving effect of structure disappears, and guide pad 2 shrinks back guide sleeve 1 by the back-moving spring (not marked in figure) for the side that sets within it
It is interior.
The drive mechanism includes servomotor 3, the output shaft connection reducer 4 of servomotor 3, is gone back in guide sleeve 1
Provided with bolt 5, decelerator 4 is fixedly connected by six square bars 10 with bolt 5 so that bolt 5 can turn under the driving of servomotor 3
It is dynamic.Bolt 5 is located at the inner side of guide pad 2, and the inner surface of guide pad 2 is provided with two the first inclined-planes 21 and two are located at the first inclined-plane
Second inclined-plane 22 of 21 lower sections, the space formed between the first inclined-plane 21 and bolt 5 become narrow gradually from top to bottom, the second inclined-plane 22
Incline direction and the first inclined-plane 21 on the contrary, the space formed between the second inclined-plane 22 and bolt 5 gradually broadens from top to bottom.
And first inclined-plane 21 and the second inclined-plane 22 inclined degree all same, form axially symmetric structure.Is threaded with bolt 5
One sliding block 6 and the second sliding block 7, the first sliding block 6 are arranged on the inner side of the first inclined-plane 21, the medial recess of the first sliding block 6, close to first
The both ends on inclined-plane 21 are raised, and are respectively offseted by the projection at both ends with first inclined-plane 21, and similarly, the second sliding block 7 is set
In the inner side of the second inclined-plane 22, its medial recess, both ends are raised, and are respectively offseted by the projection at both ends with second inclined-plane 22.
The side of the remote guide pad 2 of first sliding block 6 and the second sliding block 7 is provided with confined planes 8, and confined planes 8 can also be along the week of guide sleeve 1
To extension so as to which two sliding blocks be wrapped, so, when bolt 5 rotates, the first sliding block 6 and the second sliding block 7 just can be along
Bolt 5 slides axially, in addition, that internal thread used is connected with bolt 5 is in opposite direction for the first sliding block 6 and the second sliding block 7 so that
When bolt 5 rotates, the first sliding block 6 is opposite with the direction of motion of the second sliding block 7.For example, when bolt 5 is along when rotating clockwise,
One sliding block 6 moves towards with the second sliding block 7, now on the first sliding block 6 and the second sliding block 7 it is raised respectively along the first inclined-plane 21 and
The direction movement that second inclined-plane 22 narrows towards space, is released so as to be directed to block 2.When bolt 5 rotates in the counterclockwise direction,
First sliding block 6 and the second sliding block 7 move away from mutual direction, i.e. the now projection on the first sliding block 6 and the second sliding block 7
The direction respectively to be broadened along the first inclined-plane 21 and the second inclined-plane 22 towards space is moved, and guide pad 2 is in the presence of back-moving spring
Shrink back in guide sleeve 1.First inclined-plane 21 and the second inclined-plane 22 respectively set two, equivalent to the backup distance of the sliding block of extension,
The long enough that the length of guide pad 2 is designed, occur hole deviation when and the borehole wall contact area it is sufficiently large, righting effect is more
Good stabilization.Pressing plate 9 is detachably mounted with guide sleeve, for pushing down guide pad 2.So transported in well system
In journey guide pad 2 will not auto-extending, convenience in transport.
Fig. 3 is refer to, the control system part of well system includes gyroscope, accelerometer and fluxgate, for sensing
Spatial attitude of the well system in underground.Wherein gyroscope, accelerometer use the MEMS tops based on MEMS (MEMS)
Spiral shell instrument and mems accelerometer.The output end of gyroscope, accelerometer and fluxgate is connected to controller by analog-digital converter
Input, controller output end connection servomotor 3 motor control panel, when gyroscope, accelerometer and fluxgate etc.
When sensor detects that hole deviation occurs, controller control servomotor 3 starts, and guide pad 2 stretches out top under drive mechanism effect
The firmly borehole wall, controller control servomotor 3 is inverted after righting, and guide pad 2 is withdrawn.The guiding number of blocks that the present invention uses is three
It is individual, circumferentially it is spacedly distributed along guide sleeve (as shown in Figure 2), it is therefore desirable to which three sets of servomotors and drive mechanism drive.
Minor diameter static state backup vertical drilling system under being driven above to micromachine provided by the present invention is carried out
It is discussed in detail.Specific case used herein is set forth to the principle and embodiment of the present invention, above example
Illustrate to be only intended to help the core concept for understanding the present invention.It should be pointed out that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification
Also fall into the protection domain of the claims in the present invention.
Claims (4)
1. the minor diameter static state backup vertical drilling system under a kind of micromachine driving, including guide sleeve, guide sleeve bottom are set
Having can be along the guide frame of guide sleeve radial expansion, it is characterised in that also includes the drive mechanism of driving guide frame, the drive
Motivation structure includes servomotor, and the output shaft of servomotor is threaded with bolt by decelerator drive connection bolt
Sliding block, position limiting structure is provided with inside and outside sliding block, with axial movement of the movable slider along bolt, bolt when enabling the bolt rotate
When being rotated to direction, sliding block can be directed to structure release, to enable the guide frame backup borehole wall, bolt to another
When direction rotates, guide frame can be made to be shunk in the presence of resetting-mechanism；
The position limiting structure is：The inner side of guide frame is mutually butted on the outside of sliding block, sets confined planes to offset in the guide sleeve
In the inner side of sliding block；
The guide frame is guide pad, and the inner surface of guide pad is provided with inclined-plane, makes to be formed by width between guide pad and bolt
To narrow space；
The inclined-plane includes the first inclined-plane and the second inclined-plane being arranged on below the first inclined-plane, shape between the first inclined-plane and bolt
Into space become narrow gradually from top to bottom, the space formed between the second inclined-plane and bolt gradually broadens from top to bottom；The cunning
Block includes the first sliding block, is arranged on the inner side on the first inclined-plane；And second sliding block, it is arranged on the inner side on the second inclined-plane；First slides
The internal thread of block and the second sliding block is in opposite direction；
The quantity on the first inclined-plane and the second inclined-plane is respectively two, and the inclined degree on two the first inclined-planes is identical and two the second inclined-planes
Inclined degree it is also identical；First sliding block both ends are raised, medial recess, make the raised respectively first oblique with one of the first sliding block both ends
Face offsets；Second sliding block both ends are raised, medial recess, the projection at the second sliding block both ends is respectively offseted with second inclined-plane；
Connected between the bolt and decelerator by six square bars；
In first sliding block and the second sliding block, the length of bossing is less than the length of sunk part；
The well system also includes the pressing plate being removably connected on guide sleeve, is tied for pushing down described be oriented to
Structure.
2. the minor diameter static state backup vertical drilling system under a kind of micromachine driving according to claim 1, it is special
Sign is that the resetting-mechanism is to be arranged on the back-moving spring on the inside of guide frame.
3. the minor diameter static state backup vertical drilling system under a kind of micromachine driving according to claim 1, it is special
Sign is that the control system of well system includes gyroscope, accelerometer and fluxgate, gyroscope, accelerometer and fluxgate
Output end connection analog-digital converter, the output end connection controller of analog-digital converter, controller control connects servo electricity
Machine.
4. the minor diameter static state backup vertical drilling system under a kind of micromachine driving according to claim 3, it is special
Sign is that the gyroscope is MEMS gyroscope, and the accelerometer is mems accelerometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600629.4A CN105134077B (en) | 2015-09-18 | 2015-09-18 | A kind of minor diameter static state backup vertical drilling system under micromachine driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600629.4A CN105134077B (en) | 2015-09-18 | 2015-09-18 | A kind of minor diameter static state backup vertical drilling system under micromachine driving |
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| Publication Number | Publication Date |
|---|---|
| CN105134077A CN105134077A (en) | 2015-12-09 |
| CN105134077B true CN105134077B (en) | 2018-03-09 |
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| CN201510600629.4A Active CN105134077B (en) | 2015-09-18 | 2015-09-18 | A kind of minor diameter static state backup vertical drilling system under micromachine driving |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261094B (en) * | 2019-07-17 | 2023-12-19 | 中国地质大学（北京） | Test device of pushing mechanism of vertical drilling system |
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| CN205063818U (en) * | 2015-09-18 | 2016-03-02 | 中国地质大学（北京） | Minor diameter static state under micro motor drives pushes away depends on perpendicular drilling system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202360028U (en) * | 2011-11-08 | 2012-08-01 | 湖北江汉石油仪器仪表股份有限公司 | Quick dismounting cover type back-up plate structure of automatic vertical drilling tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1535961A1 (en) * | 1987-07-21 | 1990-01-15 | Тюменский индустриальный институт им.Ленинского комсомола | Arrangement for preventing croocking of wells |
| CN1192796A (en) * | 1995-05-19 | 1998-09-09 | 泰里杰特技术公司 | Adjustable stablizer for directional drilling |
| GB2419616B (en) * | 2004-11-02 | 2008-06-18 | Scient Drilling Int | Steerable drilling apparatus having a differential displacement side-force exerting mechanism |
| CN201221315Y (en) * | 2008-05-27 | 2009-04-15 | 王瑞奇 | Rotary guiding device of well drilling machine |
| CN101696628A (en) * | 2009-11-12 | 2010-04-21 | 刘宝林 | Steering bias tool and steering bias method |
| CN202227985U (en) * | 2011-09-23 | 2012-05-23 | 中国石油集团西部钻探工程有限公司 | Vertical drilling tool |
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| CN105134077A (en) | 2015-12-09 |
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